#define _CRT_SECURE_NO_WARNINGS 1
#include"string.h"

void test1()
{
	bit::string s("123");
	bit::string ss("1234");
	cout << s << endl;
	s = ss;
	cout << s << endl;

	/*s.push_back('5');
	cout << s << endl;

	s.append("678");
	cout << s << endl;

	s += "910";
	cout << s << endl;

	cin >> s;
	cout << s << endl;
	cout << s.find('6');*/
	
}

int main()
{
	test1();
	return 0;
}